Liquid crystal display having wide viewing angle

ABSTRACT

Apertures are formed in the common electrode or in the pixel electrode of a liquid crystal display to form a fringe field. Storage capacitor electrodes are formed at the position corresponding to the apertures to prevent the light leakage due to the disclination caused by the fringe field. The apertures extend horizontally, vertically or obliquely. The apertures in adjacent pixel regions may have different directions to widen the viewing angle.

CROSS REFERENCE

The present application is a continuation of U.S. patent applicationSer. No. 10/903,480 filed on Aug. 2, 2004 now U.S. Pat. No. 7,016,004which is a continuation of U.S. patent application Ser. No. 09/877,481filed on Jun. 8, 2001 issued as U.S. Pat. No. 6,771,344 which is adivisional of U.S. patent application Ser. No. 09/087,408 filed on May29, 1998 issued as U.S. Pat. No. 6,285,431 all of which are incorporatedherein in their entirety.

BACKGROUND OF THE INVENTION

(a) Field of the Invention

The present invention relates to a liquid crystal display having wideviewing angle.

(b) Description of the Related Art

A liquid crystal display (LCD) includes two substrates and a liquidcrystal layer interposed therebetween. The transmittance of the light iscontrolled by the strength of the electric field applied to the liquidcrystal layer.

A conventional twisted nematic (TN) liquid crystal display, which is oneof the most widely used LCD, has a couple of transparent substrateswhich have transparent electrodes respectively on their inner surfaces,a liquid crystal layer between two substrates, and a couple ofpolarizers which are attached to the outer surfaces of the substratesrespectively. In off state of the LCD, i.e., in the state that theelectric field is not applied to the electrodes, the long axes of theliquid crystal molecules are parallel to the substrates and twistedspirally with a constant pitch from the inner surface of one substrateto that of the other substrate, and thus the orientation of the longaxes of the liquid crystal molecules vary continuously.

However, the contrast ratio of the conventional TN LCD in a normallyblack mode may not be so high because the incident light is not fullyblocked in its off state, i.e., in absence of the electric field.

To solve this problem, a vertically aligned twisted nematic (VATN) modeLCD is proposed in the U.S. Pat. No. 3,914,022 and in “Eurodisplay '93”,pp. 158-159 by Takahashi.

The VATN in normally black mode may have an off state which issufficiently dark, because the liquid crystal molecules are alignedperpendicular to the substrates in off state. However, the viewing angleof the VATN LCD may not be so wide.

On the other hand, T. Yamamoto et al. disclosed a VATN simple matrix LCDusing fringe fields in “SID '91, pp. 762-765”, and Lien proposed astructure having an aperture in the pixel electrode to solve the problemof low transmittance in on state of a simple matrix multi domain VATN.

However, the structure that Lien proposed may have light leakagegenerated near the aperture.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to widen the viewingangle of LCD.

It is another object of the present invention to prevent thedisclination of LCD.

These and other objects, features and advantages are provided, accordingto the present invention, by a liquid crystal display comprising a firstsubstrate having a common electrode, a second substrate having a pixelelectrode and a storage capacitor electrode. One of the electrodes hasan aperture and the storage capacitor electrode is located at theposition corresponding to the aperture.

The storage capacitor electrode prevents the light leakage due to afringe field generated from the aperture.

Between the first and the second substrates, a liquid crystal layerhaving negative dielectric anisotropy may be interposed. The liquidcrystal layer may include chiral nematic liquid crystal or nematicliquid crystal having chiral dopant of 0.01-3.0 wt %.

Two substrates may have alignment layers respectively, to align themolecular axes of the liquid crystal molecules perpendicular to thesubstrates. The alignment layers may be rubbed or not.

The storage capacitor electrode may be connected to a gate line and thenumber of the storage capacitor electrode may be more than one.

It is preferable that the width of the aperture is 3-15 μm and thedistance between the apertures is 8-50 μm.

To obtain the wide viewing angle, the linear apertures in adjacent pixelregions extend in the different directions. For example, if thedirection of the aperture of one pixel is parallel to the gate line, theaperture of the adjacent pixel is preferably perpendicular to the gateline. As a result, the liquid crystal molecules rotate in 4 directions.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A and 1B are schematic diagrams of the alignment of liquidcrystal molecules of a VATN LCD respectively in black state and whitestate according to an embodiment of the present invention.

FIG. 2 shows the structure of the electrodes and the alignment of theliquid crystal molecules of a VATN LCD according to an embodiment of thepresent invention.

FIG. 3 is a layout view of a common substrate according to the firstembodiment of the present invention.

FIG. 4 is a layout view of a TFT (thin film transistor) substrateaccording to the first embodiment of the present invention.

FIG. 5 is a sectional view of a TFT substrate shown in FIG. 4 takenalong the line V-V′.

FIG. 6 is a layout view of a common substrate according to the secondembodiment of the present invention.

FIG. 7 is a layout view of a TFT substrate according to the secondembodiment of the present invention.

FIG. 8 is a layout view of a common substrate according to the thirdembodiment of the present invention.

FIG. 9 is a layout view of a TFT substrate according to the thirdembodiment of the present invention.

FIG. 10 is a layout view of a common substrate according to the fourthembodiment of the present invention.

FIG. 11 is a layout view of a TFT substrate according to the fourthembodiment of the present invention.

FIG. 12 is a layout view of a substrate according to an embodiment ofthe present invention.

FIGS. 13A and 13B show rotated directions of the liquid crystalmolecules near the apertures.

FIG. 14 is a layout view of a common substrate according to the fifthembodiment of the present invention.

FIG. 15 is a layout view of a TFT substrate according to the fifthembodiment of the present invention.

FIG. 16-19 are layout views of substrates according to the sixth to theninth embodiments of the present invention.

FIG. 20 is a sectional view of LCD according to an embodiment of thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will now be described more fully hereinafter withreference to the accompanying drawings, in which preferred embodimentsof the present invention are shown. This invention may, however, beembodied in different forms and should not be construed as limited tothe embodiments set forth herein. Rather, these embodiments are providedso that this disclosure will be thorough and complete, and will fullyconvey the scope of the invention to those skilled in the art. In thedrawings, the thickness of layers and regions are exaggerated forclarity.

FIGS. 1A and 1B are schematic diagrams of the alignment of liquidcrystal molecules of a VATN LCD respectively in black state and whitestate according to an embodiment of the present invention. FIG. 2 showsthe structure of the electrodes and the alignment of the liquid crystalmolecules of a VATN LCD according to an embodiment of the presentinvention.

As shown in FIGS. 1A and 1B, two glass substrates 1 and 2 are spacedapart from each other. On the inner surfaces of the substrates 1 and 2,transparent electrodes 12 and 120 made of a transparent conductivematerial such as ITO (indium tin oxide) or the like are formedrespectively, and alignment layers 14 and 140 are formed thereonrespectively. Between the substrates 1 and 2, a liquid crystal layer 100including a chiral nematic liquid crystal having negative dielectricanisotropy or a nematic liquid crystal doped with chiral dopant of0.01-0.3 wt % is disposed. On the outer surfaces of the substrates 1 and2, polarizers 13 and 130 are attached. The polarizers 13 and 130polarize the rays incident on the liquid crystal layer 100 and the raysout of the liquid crystal layer 100 respectively. The polarizingdirections of the polarizers 13 and 130 are perpendicular to each other.The alignment layers 14 and 140 may be rubbed or not.

FIG. 1A shows the off state that the electric field is not applied,where the long molecular axes of the liquid crystal molecules 3 in theliquid crystal layer 100 are aligned perpendicular to the surface of thesubstrates 1 and 2 by the aligning force of the alignment layers 14 and140.

The polarized light by the polarizer 13 attached to the lower substrate1 passes through the liquid crystal layer 100 without changing itspolarization. Then, the light is blocked by the analyzer 130 attached tothe upper substrate 2 to make a black state.

FIG. 1B shows the on state that the sufficient electric field is appliedto the liquid crystal layer 100 by the electrode 4 and 5, where theliquid crystal molecules 3 in the liquid crystal layer 100 are twistedspirally by 90° from the lower substrate 1 to the upper substrate 2, andthe director of the liquid crystal layer 100 varies continuously.However, near the inner surfaces of two substrates 1, 2, the aligningforce of the alignment layers 14, 140 is larger than the force due tothe applied electric field, and the liquid crystal molecules stayvertically aligned.

The polarized light by the polarizer 13 passes through the liquidcrystal layer 100 and its polarization is rotated by 90° according tothe variation of the director of the liquid crystal layer 100.Therefore, the light passes through the analyzer 130 to make a whitestate.

FIG. 2 shows the structure of the electrodes and the alignment of theliquid crystal molecules of a VATN LCD according to an embodiment of thepresent invention. An ITO electrode 4 formed on the upper substrate 2has an aperture 6. In absence of electric field as shown in FIG. 1A, theliquid crystal molecules 3 stay in its vertically aligned state to showthe black state. If the electric field applied to the liquid crystallayer by the electrodes 4 and 5, in most regions between the electrodes4 and 5, the field direction is perpendicular to the substrates 1 and 2.However, near the aperture of the ITO electrode 4, the electric field isnot completely perpendicular to the substrate 2. The electric field nearthe aperture is called the fringe field. The long axes of the liquidcrystal molecules tend to be perpendicular to the field direction sincethe liquid crystal layer have negative dielectric anisotropy. Therefore,the directions of the long axes of the liquid crystal molecules aretilted and twisted near the fringe field.

An LCD according to embodiments of the present invention includes a TFT(thin film transistor) substrate and a common substrate. On the TFTsubstrate, a plurality of gate lines and data lines crossing each otherare formed, and the gate lines and the data lines define pixel regions.On the common substrate, a common electrode having apertures and a blackmatrix which defines pixel regions are formed.

According to the first to the fourth embodiments of the presentinvention, a storage capacitor electrode is formed at the positioncorresponding to the aperture to shield the light leakage.

Now, the first embodiment of the present invention will be describedwith reference to FIGS. 3-5.

FIG. 3 is a layout view of a common substrate of a liquid crystaldisplay according to the first embodiment of the present invention. FIG.3 shows a pixel region, where a common electrode has apertures.

As shown in FIG. 3, a black matrix pattern 7 is formed along theboundary of a pixel region P, and a common electrode 6 is formed tocover the entire surface of the common substrate. The common electrode 6has two longitudinally long linear apertures 15 which are spaced apartfrom and parallel to each other in a pixel region.

It is preferable that the width of the apertures 15 may be 3-15 μm, andthe distance between the apertures 15 may be 8-50 μm. The width of 3-12μm and the distance of 10-30 μm would be better.

FIG. 4 is a layout view of a TFT substrate according to the firstembodiment of the present invention, and FIG. 5 is a sectional view ofthe TFT substrate taken along the line V-V′ of FIG. 4.

As shown in FIGS. 4 and 5, a first and a second gate lines 81 and 82spaced apart from each other are formed on a transparent glass substrate20, and extend in the horizontal or transverse direction. Two storagecapacitor electrodes 11 which are separated from and parallel to eachother connected to both the gate lines 81 and 82 are formed on thesubstrate 20. The storage capacitor electrodes 11 are longitudinallylay, and they are located at the positions corresponding to theapertures 15 in the common electrode 6 on the common substrate.

A gate insulating layer 30 covers the storage capacitor electrodes 11and the first and the second gate lines 81 and 82. A data line 9perpendicular to the gate lines 81 and 82 is formed on the gateinsulating layer 30. A TFT having a gate electrode which is a portion ofthe first gate line 81 is formed at a portion near the intersection ofthe first gate line 81 line and the data line 9. A planarizedpassivation layer 40 is formed thereon, and a pixel electrode 10overlapping the first and the second gate lines 81 and 82 and the dataline 9 is formed on the passivation layer 40. An alignment layer 50 isformed thereon, and the alignment layer 50 may be rubbed or may not.

Although the linear apertures in the common electrode extendlongitudinally in this embodiment, they may extend horizontally orobliquely.

FIGS. 6 and 7 are the respective layout views of the common and TFTsubstrates having horizontal apertures according to the secondembodiment.

As shown in FIG. 6, a black matrix pattern 7 is formed along theboundary of a pixel region P, and a common electrode 6 is formed tocover the entire surface of the common substrate. The common electrode 6has a plurality of horizontally long linear apertures 15 which arespaced apart from and parallel to each other in a pixel region.

The width and the distance of the apertures 15 may be the same as thoseof the first embodiment.

On the other hand, as shown in FIG. 7, a first and a second gate lines81 and 82 which are separated from each other and extend horizontallyand a branch 12 connecting the gate lines 81 and 82 extending in avertical direction are formed on a transparent glass substrate 20. Aplurality of storage capacitor electrodes 11 which are parallel to eachother and to the gate lines 81 and 82 are formed on the substrate andconnected to the branch 12. The storage capacitor electrodes 11 aretransversely lay, and they are located at the positions corresponding tothe apertures 15 in the common electrode 6 on the common substrate.

FIGS. 8-11 are layout views of common and TFT substrates having obliqueapertures according to the third and the fourth embodiments. In thethird and the fourth embodiment, the apertures make an angle of 0°-90°to the data line and the gate line.

As shown in FIGS. 8 and 10, a black matrix pattern 7 is formed along theboundary of a pixel region P, and a common electrode 6 is formed tocover the entire surface of the common substrate. The common electrode 6has two obliquely long linear apertures 15 which are spaced apart fromeach other in a pixel region.

In the third embodiment shown in FIG. 8, each pixel has an apertureextending in the down left direction from the up right edge and anaperture extending in the up left direction from the bottom right edge,and the end of apertures 15 reach the left central edge of the pixel. Onthe other hand, in the fourth embodiment illustrated in FIG. 10, eachpixel has two parallel apertures extending in the up right or the downleft direction.

The width and the distance of the apertures 15 may be the same as thoseof the first embodiment.

FIGS. 9 and 11 are the layout views of TFT substrates according to thethird and the fourth embodiments of the present invention.

As shown in FIG. 9, a first and a second gate lines 81 and 82 which areseparated from each other and extend horizontally and a branch 12connecting the gate lines 81 and 82 extending in a vertical directionare formed on a transparent glass substrate 20. Two storage capacitorelectrodes 11 on the substrate extend obliquely from the gate lines 81and 82 to the left center of the pixel region P, and are connected tothe branch 12.

A TFT substrate illustrated in FIG. 11 has a first and a second gatelines 81 and 82, a branch 12 and a data line 9 having the same shapes asthose in the third embodiment shown in FIG. 9. Two storage capacitorelectrodes 11 parallel to each other extend obliquely in the up right orthe bottom left direction and are connected to the branch 12.

In the third and the fourth embodiments, as in the first embodiment, theposition of the storage capacitor electrodes 11 are corresponding to theapertures 15 in the common electrode 6 on the common substrate to shieldthe light leakage due to a fringe field.

In the third and the fourth embodiments of the present invention, thealignment layers formed on the pixel electrode may be rubbed or may not.When the alignment layers are rubbed, the rubbing direction may make anangle of 0°-135° with respect to the direction of the linear aperture.

Next, the fifth embodiment of the present invention will be described.In the fifth embodiment, adjacent pixels have apertures extendingdifferent directions to widen the viewing angle.

FIG. 12 is a layout view of a common substrate according to the fifthembodiment.

As shown in FIG. 12, a black matrix pattern 7 is formed and defines aplurality of pixel regions corresponding to the red, green and bluecolor filters R, G and B. An ITO electrode 4 having a plurality oflinear apertures 15 is formed thereon. The extending directions of thelinear apertures of adjacent pixel regions are different from eachother, i.e., horizontal apertures and vertical apertures are arrangedalternately by pixel. For example, a red pixel region has verticalapertures and an green pixel region adjacent to the red pixel region hashorizontal apertures.

It is assumed to display red color using this LCD. Then, the blue andthe green pixels remain in their OFF state, and only the red pixels turnon. If the extending direction of the apertures of a first red pixel ishorizontal, and the extending direction of the aperture of a second redpixel adjacent to the first red pixel is vertical.

Now, the behaviors of the liquid crystal molecules are described withreference to FIGS. 13A and 13B in this case.

The linear apertures 15 of the ITO electrode 4 extends vertically inFIG. 13A, while the linear apertures 15 of the ITO electrode 4 extendshorizontally in FIG. 13B.

Here, the liquid crystal molecules are left-handed when viewed from thebottom of the drawing sheet.

When the voltage is applied to the electrodes 4 and 5, the liquidcrystal molecules tilt in the directions perpendicular to the directionof the electric field due to the voltage difference between theelectrodes 4 and 5, as shown in FIG. 2. In addition, as shown in FIGS.13A and 13B, the liquid crystal molecules rotate clockwise in xy plane.

The tilt directions of the liquid crystal molecules vary according tothe extending directions of the apertures. Since the tilt directions ofthe molecules opposite each other with respect to an aperture areopposite, and there are two extending directions of the apertures, thenumber of the tilt direction is about four on the Y axis in upper parttwist to the right to the X axis, and those on the Y axis in lower parttwist to the left to X axis due to the linear aperture formed along theY axis.

Since the liquid crystal molecules tilt and rotate in four differentdirections, the viewing angles of up, down, left and right directionsare equal and the gray inversion does not occur.

Now, the structures of the color filter and the TFT substrate accordingto the fifth embodiment are described more fully.

FIG. 14 is a layout view of a common substrate showing two adjacentpixels.

As shown in FIG. 14, a black matrix pattern 7 which defines pixelregions P1, P2 is formed on the substrate, and a common electrode 6formed thereon.

The common electrode 6 has two vertical linear apertures 15 parallel toeach other in the first pixel region P1, and has a plurality ofhorizontal linear apertures 15 parallel to each other in the secondpixel region P2 adjacent to the first pixel region P1.

The width and the distance of the apertures may be the same as those ofthe first embodiment.

FIG. 15 is a layout view of a TFT substrate according to the fifthembodiment of the present invention. In a pixel region P1 correspondingto the pixel region P1 on the common substrate in FIG. 14, a first and asecond gate lines 81 and 82 and two vertical storage capacitorelectrodes 11 parallel to each other and connecting the gate lines 81and 82 are formed as those in FIG. 4. In a pixel region P2, a branch 12connecting two gate lines 81 and 82 extends parallel to a data line 9,and a plurality of storage capacitor electrodes 11 extend parallel tothe gate lines 81 and 82 from the branch 12.

As all the above-described embodiments, the storage capacitor electrodes11 are located at the positions corresponding to the apertures 15 in thecommon electrode 6.

The storage capacitor electrodes 11 overlaps a pixel electrode 10 toform storage capacitors, and play a role of a black matrix to preventthe light leakage caused by the disclination due to the apertures 15 incommon electrode 6.

The apertures in adjacent pixel regions may have various shapes. FIGS.16-19 are layout views of the sixth to the ninth embodiments havingvariously shaped apertures in adjacent pixel regions.

An LCD according to the sixth embodiment shown in FIG. 16 has firstpixels having apertures shown in FIG. 10 and second pixels havingapertures of shapes which is the same as the apertures in the firstpixels rotated by 180° with respect to the central point of the pixel.In horizontal direction, two kinds of pixels are arranged alternately,and in vertical direction, pixels in a column are the same kind. As awhole, the apertures form a chevron shape in the sixth embodiment. AnLCD according to the seventh embodiment shown in FIG. 17 has the samearrangement in the horizontal direction, however, in the verticaldirection, two kinds of pixels are arranged alternately as in thehorizontal direction. In the seventh embodiment, the apertures form achevron shape in a row, but when viewing adjacent rows, the aperturesform X or diamond shapes.

An LCD according to the eighth embodiment shown in FIG. 18 has firstpixels having apertures shown in FIG. 8 and the second pixels havingapertures of shapes which is the same as the apertures in the firstpixels rotated by 180° with respect to the central point of the pixel.In horizontal direction, two kinds of pixels are arranged alternately,and in vertical direction, pixels in a column are the same kind. As awhole, the apertures form an X or diamond shape. An LCD according to theninth embodiment shown in FIG. 19 has the same arrangement in thehorizontal direction, however, in the vertical direction, two kinds ofpixels are arranged alternately as in the horizontal direction. In theninth embodiment, the apertures form an X or diamond shape in a row.

According to the embodiments of the present invention, column shapedspacers made of metal or organic material may be used instead of ballshaped spacers since the ball shaped spacers may cause light leakage dueto the disturbance of the liquid crystal molecules near the spacers.

FIG. 20 shows a sectional view of an LCD having spacers according to anembodiment of the present invention. A liquid crystal layer 40 isinterposed between a substrate 10 having a TFT 30 and a substrate 20having a color filter (not shown). The TFT 30 formed on the lowersubstrate 10 includes a gate electrode 31, a gate insulating layer 32formed thereon, a semiconductor layer 33 formed on a portion of the gateinsulating layer 32 over the gate electrode 31, source/drain electrodes341, 342 formed on the semiconductor layer 33. A passivation layer 50covers the entire surface of the substrate 10 having the TFT 30. A pixelelectrode 60 is formed in the pixel region and electrically connected tothe drain electrode 342 through a contact hole in the passivation layer50. A spacer 100 made of a metal or an organic material is formed on theTFT.

In the embodiments of the present invention, the apertures are formed inthe common electrode 6, however, the apertures can be formed in thepixel electrode 10. When the apertures are formed in the pixel electrode10, the fringe field generated between the pixel electrode 10 and thecommon electrode 6 may be affected by the voltages applied to the dataline 9, the gate lines 81 and 82 and the storage capacitor electrode 11.To remove the influence due to the voltage applied to those signallines, it is preferable that the thickness of the passivation layer 50is equal to or more than 3 μm by using organic insulating material.

In the embodiments of the present invention, although the storagecapacitor electrodes 11 are connected to the gate lines 81 and 82, thestorage capacitor electrodes 11 may be connected to another signalsources.

According to the embodiments of the present invention, the liquidcrystal molecules are tilted in the various directions due to the fringefield to have a wide viewing angle, and the storage capacitor electrodesprevents the light leakage near the fringe field.

In the drawings and specification, there have been disclosed typicalpreferred embodiments of the invention and, although specific terms areemployed, they are used in a generic and descriptive sense only and notfor purposes of limitation, the scope of the invention being set forthin the following claims.

1. A liquid crystal display comprising: a first substrate; a gate lineformed on the first substrate; a data line formed on the firstsubstrate; a first field-generating electrode formed on the firstsubstrate, the first field-generating electrode comprising a firstaperture as a domain divider in an upper portion and a second apertureas a domain divider in a lower portion; a second substrate, spaced apartfrom the first substrate, and a liquid crystal layer comprising liquidcrystal molecules having negative dielectric anisotropy and alignedsubstantially in a vertical direction to the first substrate when noelectric field is applied to the liquid crystal layer, the liquidcrystal layer being interposed between the first substrate and thesecond substrate and divided into a plurality of domain areas by thefirst aperture and the second aperture when an electric field is appliedto the liquid crystal layer, wherein the first aperture and the secondaperture are linear apertures respectively, and are substantiallyarranged in a chevron and are slantingly extended with respect to thegate line or the data line, wherein no other linear aperture as a domaindivider crosses over or meets the first aperture or the second aperture,and the first and second apertures are spaced apart from each other in apixel region, and wherein widths of the first aperture and the secondaperture are about 3 μm to about 15 μm, respectively.
 2. A liquidcrystal display of claim 1, further comprises an organic insulatinglayer formed on the data line and the gate line, wherein the firstfield-generating electrode is formed on the organic insulating layer. 3.A liquid crystal display of claim 2, wherein the organic insulatinglayer is equal or more than 3 um.
 4. A liquid crystal display of claim2, further comprises an organic spacer disposed between the firstsubstrate and the second substrate.
 5. A liquid crystal display of claim1, further comprises a first storage electrode overlapped with one ofedge portions of the first field-generating electrode, wherein the firststorage electrode extends in parallel with the gate line and one portionof outer edge lines of the first field-generating electrode is disposedinside the first storage electrode and along the first storageelectrode.
 6. A liquid crystal display of claim 5, further comprises asecond storage electrode overlapped with the first field-generatingelectrode and electrically connected to the first storage electrode,wherein the second storage electrode extends in parallel with the dataline.
 7. A liquid crystal display of claim 5, further comprises a thirdstorage electrode overlapped with the first field-generating electrodeand electrically connected to the first storage electrode, wherein thethird storage electrode slantingly extends with respect to the gate lineor the data line.
 8. A liquid crystal display of claim 1, wherein theliquid crystal layer is divided into four different domain areas by thefirst aperture and the second aperture.
 9. A liquid crystal display ofclaim 8, further comprises a first storage electrode overlapped with oneof edge portions of the first field-generating electrode, wherein thefirst storage electrode extends in parallel with the gate line and oneportion of outer edge lines of the first field-generating electrode isdisposed inside the first storage electrode and along the first storageelectrode.
 10. A liquid crystal display of claim 9, further comprises asecond storage electrode overlapped with the first field-generatingelectrode and electrically connected to the first storage electrode,wherein the second storage electrode extends in parallel with the dataline.
 11. A liquid crystal display of claim 9, further comprises a thirdstorage electrode overlapped with the first field-generating electrodeand electrically connected to the first storage electrode, wherein thethird storage electrode slantingly extends with respect to the gate lineor the data line.
 12. A liquid crystal display of claim 1, wherein thefirst field-generating electrode overlaps adjacent data lines.
 13. Aliquid crystal display of claim 12, wherein the first field-generatingelectrode overlaps the gate line.